30020123131400 has 96 divisors (see below), whose sum is σ = 73481803262400. Its totient is φ = 11374265721600.

The previous prime is 30020123131373. The next prime is 30020123131433. The reversal of 30020123131400 is 413132102003.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23784629 + ... + 25014971.

It is an arithmetic number, because the mean of its divisors is an integer number (765435450650).

Almost surely, 2^{30020123131400} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30020123131400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36740901631200).

30020123131400 is an abundant number, since it is smaller than the sum of its proper divisors (43461680131000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30020123131400 is a wasteful number, since it uses less digits than its factorization.

30020123131400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236799 (or 1236790 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30020123131400 its reverse (413132102003), we get a palindrome (30433255233403).

The spelling of 30020123131400 in words is "thirty trillion, twenty billion, one hundred twenty-three million, one hundred thirty-one thousand, four hundred".